6639148 has 6 divisors (see below), whose sum is σ = 11618516. Its totient is φ = 3319572.

The previous prime is 6639119. The next prime is 6639209. The reversal of 6639148 is 8419366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829890 + ... + 829897.

Almost surely, 2^6639148 is an apocalyptic number.

It is an amenable number.

6639148 is a deficient number, since it is larger than the sum of its proper divisors (4979368).

6639148 is a wasteful number, since it uses less digits than its factorization.

6639148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659791 (or 1659789 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 6639148 is about 2576.6544199795. The cubic root of 6639148 is about 187.9478880764.

The spelling of 6639148 in words is "six million, six hundred thirty-nine thousand, one hundred forty-eight".